Legal claims defining the scope of protection, as filed with the USPTO.
1. A system comprising: one or more video processing components; and a display processing unit coupled the one or more video processing components, wherein the display processing unit includes: one or more processing pipelines configured to generate read requests to fetch stored pixel data from a memory for subsequent display on a display unit; a timing control unit configured to generate an indication that indicates that the display unit will enter an inactive state; wherein in response to receiving the indication, one or more of the video processing components are configured to enter a low power state.
2. The apparatus of claim 1 , wherein the indication indicates that the display will enter the inactive state within a predetermined amount of time.
3. The apparatus of claim 2 , wherein the predetermined amount of time corresponds to a time for a predetermined number of lines of a display data frame to be processed.
4. The apparatus of claim 1 , wherein the one or more of the video processing components are further configured to enter the low power state upon completion of processing of a current task.
5. The apparatus of claim 4 , wherein the one or more video processing components includes a video decoder configured to complete processing of a current configuration task and to subsequently enter a low power state in response to in response to receiving the indication.
6. The apparatus of claim 4 , wherein the one or more video processing components includes a memory to memory pixel processing unit configured to complete processing of a current task and to subsequently enter a low power state in response to receiving the indication.
7. The apparatus of claim 1 , wherein the timing control unit is further configured to generate a second indication that indicates that the vertical blanking interval is coming to an end and that the display unit will enter an active state.
8. The apparatus of claim 7 , wherein in response to receiving the second indication, the one or more of the video processing components are configured to enter an active state.
9. The apparatus of claim 1 , further comprising a power management unit configured to remove an operating voltage from the one or more of the video processing components thereby enabling the one or more of the video processing components to enter the low power state.
10. The apparatus of claim 1 , further comprising a power management unit configured to stop one or more system clocks from toggling in the one or more of the video processing components thereby enabling the one or more of the video processing components to enter the low power state.
11. A method for operating a display processing system including one or more video processing components, the method comprising: a display unit alternatingly entering an active state and an inactive state during operation of the display processing system; generating read requests to fetch stored pixel data from a memory for subsequent display on the display unit; generating, by a timing control unit, an indication that indicates that the display unit will enter the inactive state; and one or more of the video processing components entering a low power state in response to receiving the indication.
12. The method of claim 11 , wherein the indication indicates that the display will enter the inactive state within a predetermined amount of time.
13. The method of claim 12 , wherein the predetermined amount of time corresponds to a time for a predetermined number of lines of a display data frame to be processed.
14. The method of claim 12 , wherein the predetermined amount of time is programmable.
15. The method of claim 11 , wherein entering the low power state includes clock gating to stop one or more system clocks from toggling within the one or more of the video processing components.
16. The method of claim 11 , further comprising the one or more of the video processing components re-entering the active state in response to receiving a second indication that indicates that the vertical blanking interval is coming to an end and that the display unit will enter an active state.
17. A system comprising: a memory; a display unit; and an integrated circuit coupled to the memory and to the display unit, wherein the integrated circuit includes: one or more video processing components; a display processing unit coupled to the memory and the one or more video processing components, wherein the display processing unit includes: one or more processing pipelines configured to generate read requests to fetch stored pixel data from the memory for subsequent display on the display unit; a timing control unit configured to generate an indication that indicates that the display unit will enter an inactive state; wherein in response to receiving the indication, one or more of the video processing components are configured to enter a low power state.
18. The system of claim 17 , further comprising a communication fabric interconnecting the one or more video processing components and the display processing unit, wherein in response to receiving the indication, the communication fabric is configured to enter the low power state.
19. The system of claim 17 , wherein the one or more of the video processing components are further configured to enter the low power state upon completion of processing of a current task.
20. The system of claim 17 , wherein the indication indicates that the display will enter the inactive state within a predetermined amount of time.
Unknown
November 24, 2015
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